Cover for a food container



FIG. 1 is a top, side and front perspective view of a cover for a food container showing my new design;

FIG. 2 is a front elevation view; the rear, left side and right side elevations being identical thereto;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof; and,

FIG. 5 is a bottom, side and rear perspective view thereof. 

The ornamental design for a cover for a food container, as shown and described. 